Abstract
A model for joint probability distribution of wind and wave is proposed and relations between wind speed, wave height and wave period at deep water near the Choshi offshore wind demonstration site are derived by using 10 years simulation data, which are obtained from mesoscale and third generation wave models. Mean values, standard deviations, probability distributions of wave height and wave period are expressed as functions of wind speeds and modeled by combined models of wind wave and swell, linear functions and log-normal distributions, respectively. The correlation coefficient between wave height and wave period is also modeled as a function of wind and expressed by a hyperbolic tangent function. Monte Carlo simulation is conducted, and wind speeds, wave heights and wave periods are generated based on proposed models. Predicted joint probability distributions show satisfactory agreement with observations.
